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H M. COGAN. FUSE FOR EL ECTRIC CIRCUITS. APPLICATION FILED APR. Is 1911.

Patented July 1, 1919.

INVENTUI? man/4n UNITED sTATEs nrrnr OFFICE.

HENRY MANNING COGAN, OF BROGKLYN, NEW YORK.

rusn non nnnornic erasures.

To all whom it may concern it known that 1, Henry MANNING Conan, a citizen of the United States, and resident of the borough of Brooklyn, county of Kings, city and State of New York, have invented certain new and useful Improve- :gments in Fuses for Electric Circuits, of

which the following is a specification.

, ffThe device the subject of this invention is intended as a refillable cartridge fuse, and

the invention resides primarily in the construction of the fuse, and in the means for retaining the fuse link or metallic strip,

- usually termed the fuse, in a proper posh 1.

tion, and under conditions which, when the fuse is disrupted byan excessive'current, will-allow the ready insertion of a new fuse or fuse link.

The important features of the invention reside in the fact that the fuse as a whole may be used a great number of times, that- I the cartridge or container may retain fuse "links of an desired capacity. That the device has all of the characteristics and ad vantages of the ordinary cartridge fuse and the added advantages which will be fully described as the specification progresses.

The following is what I consider a good means of carrying out this invention, and the accompanying drawings should be re ferred to for a full understanding of the specification which follows:

In the drawings: I t Figure 1 shows a side elevation of a complete cartridge fuse.

I Fig. 2 a partial sectional viewof the de vice shown in Fig. 1.

Specification of Letters Patent.

Arranged one at each end of the tubular member 1, are metallic caps'2 and 3, and these capsare secured to the body or tubular Patented July 1, 1919.

Application filed April 1.3, 1511?. Serial No. 161,886.

member 1, by means of bolts 1 and 5, which pass quite through the caps, and through the member 1. f The caps 2 and 8 are formed as cups, and are each provided with a plurality of per forations 6, 7, 8 and 9, which I may term ventilating ports, and which will be later described,

Each cap is provided with an elongated slot 10, through which will project, what is sometimes termed the knife blades, and

I which are shown at 11- and 12, in Figs. 1

and 2. Additional perforations in the caps receive the securing screws 13 and 14, and still further perforations 15 and 16 are for a purpose that will be later described.

As shown in Fig. 5, each of the knife blade members is provided with a. plurality of outwardly extending lugs 17 and 18. These lugs are in turn provided with screw threaded perforations 19 and 20, and when assembled the perforations 19 and 20 will receive the securing screws 13 and 14:.

The fuse or link member is one of the most important members of my device, and it may be made in a number of dlii'erent ways. I have, however, on the fuse shown in the drawings used parallel fuse links as shown in Fig. 3, and the construction of these links is clearly shown in Fig. 2.

Each link is provided with parallel arms 21 and 22, formed integral and joined by a loop or return bend 23. This loop or re turn bend passes over one of the lugsl? or 18, and when the screw 13 or 14 is inserted through the return bend 23, and into the lug 17 or 18, the screw .13 draws re cap 3, downward or inward against tli return bond 23, clamping the return hen of the fuse in firm contact between the in 17 and, I

the cap As the lug 17 is of metal, prefcrab] y copper, and the cap 3 is alsoof metal,

preferably copper, it will be readily' u nderstood that a close and satisfactoryelectric t action shown he contact will by the con; established hetweon t knife hlado The oppoe the rose lin ping projoe )l'OjOcllCdiH are l n (trailing) u on pre, fionsly described.

As an inn ll. Fm. trio links It and 1% ma he employ d. and arranged parallo with each other. tire nvsing beti'een the two 'lt lll'lkS. I may perforate the linlia A am it, as shown at. :36 and LT. ire-likening them at; a delinito point, the point where it is: desired that: they should part when an excessive current is pasJ ed through them.

t may pro-ride depressions or serrations and, 30 in the separate arma 21 and no {use links. and in this Way preventa weakening ot thilinks dne to tho tightening: of the --erenn l3 and ll.

An impo' ant teatiiro ot m fuse is tho means that. l employ for ventilating the. intr-rior ol tho e \'lindrioal memhor. This means onaislis or" providing; perforations (3. T, S and i in each ol the raps. in oaoh of these. perforations I place a thimhle shown 1 5 the onti-r edges of tho a: .1. 1i thimhle are turnod over the adjaeent p01- tion of the rap. and the innor edges are turned outward. and then inward as shown 2. and into the return hond formed at introiluee a small dial; of woven Wire, mesh or gauze shown at 13 This mesh pro-- ei'ts the perlorations. proridea ample rent ation lor the interior ol the tune. and will isuall prevent the reading; ol the time oaso the hreal-Iing oi an} of the parts 1 h the maploaion or increased presne to't'he hurniny; out at the tune. is i oi lhosr' .rntilatingg pertorations ia pri ed h a gg'anxo or mesh 33. gases under llll'n'lim. or the llanie or air due to tho lending ol the l'use eannot eat-ape. lhe ignition or are will l e. quenehed h the gauze, 33 in a manner rvrll umloratoo-d.

The per orzuiona l5 and n; are arranged adjacent to the arrow holes rnrou jh which the. sc ews 13 z therefore. a portion 1 f tho aorta 1- ol' the tune linl: will ho UXI NNHl througn the perforations 15 and to. and upon -lli.at. portion ol the tune. linli t will stamp the rapaeit r of {he link. Thus in the Fig. l oi the drawing the left hand l'uee link i.--' indieated at. l l aliowinnthat thia linlq has a eapaeiti' ol lit) auiperes. the right hand llllh shows "i imlirating' that tlria linli has arr-parity ol 'll ll amperea.

it. is olnioim that l may Jinks ol' the v ame rapaeily and and ll pa u will probably ho ho giirneral prartice. I may n .lll-ZCllillQ. 'luse link in a manner other than by the. portorat-iona 12 and 2?. it is. alao ohriona tha'i the depreaaionn :33. 2 and ill) may he of an nuinher and ma ho arranged in any dcsirahin manner. Ul'r. may he used without the Whole. and other mmlil rvalions made Within the scope ol the appended elainn, without imparting tron. the prineiple or sacrificing thev advantage; at the iii-- volition.

illljaring carefully and full deswilaud my invention what 1 claim and (.esire. to wcure. o Letters Patents l. i cartridge tum having a cylindrical member metallic cup shaped membersv curod one. upon each and of said cjl'liudrieal member, mox'ahle eontaol: members one adjacent to earh of said can ahaped members and oxtendiug: theretln'ougih. each of said. movable Contact members having a plurality of lugs formed integral ther ilh. a fuse link. means for seeuring' one end. of said link hetn'oen the lugs oi? ono ol' said mow ahle memhera and the cup shaped momher adjacent thereto and moan for securing; the. other end '01" said link between tho lugs of tho othor of said movable lllrlillltll'fi and tho cup ahaped memher adjaeeut th reto.

A eartridgre 'l llfie comprising a oyliin lrical memher ot' non-("ondmrtive material. me tallic memhera eeured one upon nch and of said ovlindrical memher, a movahle. contiaet member adjacent to eaeh of said metallic memhcra and extending therethrough. lugs tor-med upon each oi said movable eontaot members and arranged interior of said eylindrical memher. and fuse links secured at their approximate mid-length hetweon the lugs of one of said movable Contact momhers and tho metallicv memher adjacent. thereto and having their tree endi s'rcurod lief-Ween the lugs ot' another of said movable. ront'aot memhers and the metallicv moinhnr adjarent hereto.

t. .i eart'ridg o tune, having a (f \lll'l(l1ltll easing: a t me link Within said casing. mntallir cup shared members aran-Qud one upon each end of said easing earh el said cap shaprd meml ers heing' provided with a plu- 'ralilf ot perforations. thimhle siarurnd in corliain o'l said pert'orationa. a "woven wire, memher supported h eaeh ot said thiiu'ol and means panning cal member, metallic caps arranged one at Signed at New York city, county and eachend thereof, contact members passing State of NeW'York, this2nd day of April through said metallic eaps,fand each having 1917. a plurality of lugs, means or securing sai lugs to said caps and fuse links adapted to HENRY:MA-NNING E be secured between said lugs and said caps, Witnesses:

and to extend through said cartridge as G. E. S. MARK,

herein set forth.-

\ ANTONIO PHELPS MARK. f 

